General > General Technical Chat

When the bugs get violent...

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lemming:
So this week has been a bit of a tumultuous one for me.

Tuesday I was very closely watching some items I was bidding on at Grays auctions, namely a 3KVA UPS and Extended Battery Module for it, which I ended up winning for the princely sum of... $182.

To say I was over the moon was putting it lightly.

Wednesday I picked up said UPS, got it home and chucked it on the bench, it looked fairly clean and barely used, but was very VERY flat and wouldn't power up when I tried to turn it on without the AC input hooked up.

It's a C19 power input, so I had to make up a 10A to C19 cable to able to plug it in, hunted around and found the requisite parts and put it together.

A few things got in the way so I didn't end up powering it up till later that evening.

Plugged the EBM into the UPS, plugged AC into the EBM, plugged AC into the UPS and made sure all the breakers were reset and power to the EBM was turned on. All looked good.

Turned it on, got the usual BBBEEEEEEPPP that you get when turning them on and all the fans spun up and then... *PFFFFTPOP*CLICK* and everything in my house turns off.

Much swearing and cursing and naming of proverbial gods both old and new followed and a foul miasma drifted out of the UPS.

I left it alone for a few hours and then figured out how to get the lid off and started poking around and it quickly became obvious something was amiss, as there was definite signs of scorching, it was not until I removed the PCB that the scale, and cause, of the damage became obvious...

A fucking cockroach. Little bastard had clearly crawled under the PCB at some stage and made a nice comfy home, and when I turned the thing on he probably got quite the shock and started skittering around, before grounding one side of the transformer and getting the shock that ended his, and my UPS's, fairly short lives...

For those with a robust constitution, here's all the photos of the carnage.

https://photos.app.goo.gl/Y7Z7H4Asz5kikTna7

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